Impact of Acid (Progressive Brush) and Alkaline Straightening on the Hair Fiber: Differential Effects on the Cuticle and Cortex Properties

    November 2022 in “ International journal of trichology ”
    MarjoryBernardes Fileto, MariaValéria Robles Velasco, TâniaCristina de Sá-Dias … AndréRolim Baby
    Studysummary This study found that glyoxylic acid caused more protein loss in hair compared to traditional alkaline straighteners, though both types of treatments showed comparable effects on hair tensile strength.
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    Research cited in this study 5

    1. In Vitro Methodologies to Evaluate the Effects of Hair Care Products on Hair Fiber Cosmetics · 2017
    2. Protein Loss in Human Hair from Combination Straightening and Coloring Treatments Journal of cosmetic dermatology · 2015
    3. Formaldehyde Replacement with Glyoxylic Acid in Semipermanent Hair Straightening: A New and Multidisciplinary Investigation International Journal of Cosmetic Science · 2014
    4. Structure and Function of Skin, Hair, and Nails Medicine · 2013
    5. Shape Variability and Classification of Human Hair: A Worldwide Approach Human biology · 2007